The Most Terrifying Sound You've Never Heard
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- Опубліковано 26 жов 2017
- There's lots of ways to make music sound scary, but the most terrifying technique of all may be one you can't actually hear. Infrasound is sound waves that are too low for the human ear to perceive, instead creating a deep, rumbling sensation that unnerves you without seeming to come from anywhere, and it's becoming more and more common in horror movie scores. Low-level infrasound is all around us, all the time, but at high volumes we don't know a lot about its effects on the human body. The possibilities are fascinating, though, and they add a real-life scary edge to the phenomenon.
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SOURCES:
www.atlasobscura.com/articles/...
nofilmschool.com/2017/06/disqu...
www.popsci.com/technology/art...
www.discovery.com/tv-shows/my...
www.webmd.com/brain/tc/harmfu...
hyperphysics.phy-astr.gsu.edu/...
web.archive.org/web/200809201...
www.richardwiseman.com/resourc...
www.quora.com/What-is-the-lou...
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Noise is just wiggly air
Lol, what’s wiggly air?
@@gunslinger1824 its noise
Why everyone profile pic is like yours
Please.... no............
Not to be a nerd, its actually not wiggly air it's the atoms in the air than travel up and down to pass something known as "Sound Waves" sound can't travel in space since there are no atoms to vibrate to pass sound waves, so that's why space is just .......... Also, Sound does not travel up and down it travels " the longitude way" where the atoms don't move up and down but just bump into one another and go back to there spot IT DOES NOT GO UP AND DOWN but sideways, basically like you push and pull a slinky. The waves that do go up and down are Radio waves, Microwaves, Infrared, Visible light, ultraviolet, X-Ray, and finally GammaRay. I ordered them up to the least harmful(Radio Waves) to the most harmful (Gammer Ray). You know what why tell you this when you can search it up online :/ I gave u a whole lesson.
There's a creature that is so well camouflaged that it is almost invisible in its environment. It can see you, it can smell you from a rather long distance and it can track you as it moves silently. You can not see it or hear it, yet you can feel it as it stalks you through the forest. Is it a mythical creature from a monster movie? A werewolf, perhaps? No, it's a Siberian tiger. They growl in infrasound. That's next level horror movie creature right there.
i am a scaredy cat....why did u right it😭😱
They're 3 meters long (The average man is somewhere around 1.75m tall), can jump 10m into the air (A Basketball hoop is 3.10m into the air), can run at speeds of around 65km/h (the average man can run at around 25km/h, but Usain Bolt can reach up to 45km/h), have a bite force of 1050psi (the average human has 162 psi of bite force), growl in infrasound, are undetectable, and are unfathomably strong. They literally eat brown bears that are bigger than grizzlies.
@@obarich murica
@@althealligator1467 I don’t think tigers, let alone any animals, can leap 10m in the air. Maybe it’s 10m forward? Please check your facts
@@CarassiusAu I guess you're right? I'm not sure if I meant length or height, but either way, tigers still jump higher and further than you'd think. Think about how good of jumpers cats are, and now apply that to a tiger. And yes, I'm aware that the square cube law is a thing, but tigers are much, much stronger than cats.
As far as I could find, tigers can jump over 6 meters in height, which is already impressive, and not that far off from 10 meters. That makes it the highest jumping animal along with kangaroos. The long jump record for a human is almost 9 meters, so if a tiger can jump that high, just imagine how long of a jump it could do.
There's actually a film that uses a constant frequency of 19 Hz under everything and the film is thus considered unwatchable for many as the low frequency causes nausea in viewers after about 20 minutes
Spieler Subliminals do u know what it’s called tho
Pentex Sucks ty !!
I was like "That sounds like something Gaspar Noé would do" then saw "Irreversible"
What’s the movie called
@@coltonhoeckendorf6706 i think theyre talking about antrum
that moment when i was watching this video with music production headphones so my skull began to shake at the 20 hz
Yeah, part of researching this involved playing really loud infrasonic frequencies to see what it was like and it got... intense.
woah, you guys responded! just wanna say i love your channels and I've learned so much about music theory thanks to you!
+12tone yeah, heard it too
Me too, except I only have little $3 earbuds
I have quite expencive earbuds from JBL and I could hear the 20Hz one despite my age of 37 oO
For an idea of how much power is required to generate a 240 decibel noise, the nuclear weapons dropped on Hiroshima and Nagasaki were at around 248 decibels each. So roughly halve the size of those explosions (they were around 20kt of TNT equivalent, so let's say 10kt of TNT) and that's what it takes to produce a 240dB sound.
Needless to say, if you're close enough to a 240dB sound to hear it, you probably have bigger problems on your hands.
The skin facing such a sound-wave would break into a rash, and any exposed ear would be mostly deafened instantly leaving only a trailing sensation of rumbling on the side of one's head.
krakatoa : around 276 db at one meter of the eruption. The biggest sound never heard .
Yes you have bigger problems at this moment.
jean-louis pech apparently it blew out people’s eardrums 500 miles away
"If you are close enough to hear it." And by hear, you probadly mean feel it. As he said, you can't do it. But yeah, loud as f***.
Oh, and humpback whales can “click” emitting burts of infrasound at 237db, the loudest sound generated by any animal, and only a few dB short of the head explosion figure, but wait, sound wave propagation is faster in water right? Guess I’ll pass on whale watching for a bit...
Mythbusters also busted the Brown Note in an episode, but did find that the frequency at longer distances made many on the crew feel uneasy, and a little nauseated. Adam, who had all the speakers turned on him, had no ill effects.
This was awesome! Loved the drawing for logarithms lol. I think I know what you mean about the shaking and super low, loud music causing tension and atmosphere. I just watched the new blade runner and I think they used this a lot. Definitely worked...
Thanks, Jade!
Great video! I might have screamed out loud a little bit when you talked about the human head exploding.
You here!
XD
@@simaanhabib2638 7⅞79⁸968⁷y t yyy880 p 9
@@simaanhabib2638 9⁹9999999
Speaking of scary, why do I find the chord progression Cm-Db-Bb-Bm so terrifying?
Is it due to the fact that three out of four of these chords fit into the c Phrygian scale and that said scale is pretty dark?
Hm, I'm not sure I hear it tbh
I made a a Halloween beat using that chord. It truly does sound sinister but the phyrigian sister scale is much more sinister. I unfortunately don't know it
I suspect it's a combination of the two: You've got a lot of Phrygian sounds in there, and you're also mostly moving the root by half-steps.
What's going here is that you start out with a cm,which serves as a probable root chord,then proceeds to a Db. This naturally sounds dark as it's the proper phrygian sonority. Then the Bb comes along to break the hearer's expectations as it abruptly leaves phrygian. The short interval between the root of the Db chord (db itself) and the major third of the Bb (d) builds tension. It then lands at bminor,which is again unexpected. That's a deceptive resolution,when the progression doesn't rest where it was "supposed" to and it's very common in horror soundtrack. The overall short intervals,the resolution,the mixed modes,all that contributes to the eerie sensation. Hope that made any sense.
Pretty sure I actually meant to write Bbm there, since I did say that three of the four chords fit.
I heard the 20Hz in my cheap and dying Logitech USB headphones. Cool!
Have you thought about receiving and criticizing pieces sent by the viewers? Myself, I would love to send some of my work to understand it better
Bigode Mcbeagles Check out Adam Neely, he’s got a series called How Not to Suck at Music and does exactly what you described :)
Blast Beats BASS
Infrasound is one of the more likely suggestions for what may have caused the infamous Dyatlov Pass incident, in which a group of young hiking experts died in a set of increasingly more bizarre ways in the Ural Mountains. There's a whole bucket of videos about it on UA-cam if anyone's interested. :)
Oh yeah, this story is incredibly creepy and the reasons behind the incident have never been solved! I read about how it could have been infrasound that caused the hikers to run into the freezing cold without clothing or shoes. There are lots of theories about what happened and it's fascinating!
@@danadoozer9990 i think its been solved, its pretty likely it was an avalanche. the reason they ran into freezing snow without shoes or clothes is this phenomenon called paradoxical undressing, its fairly common with victims of hypothermia. basically their body suddenly starts feeling very hot because of nerve damage from the cold and blood vessels dilating as a sort of desperate effort to keep you warm, so they start undressing bc they feel very hot even though theyre freezing. usually they die shortly after
Thank you. This explains a lot about Wind Turbine Syndrome. There is someone who has studied the damaged done by low frequency sound - the video is about an hour long. The title is "INFRASOUND AND LOW FREQUENCY NOISE - Ljubljana 2018" It's damaging to humans and animals - and it can kill. It's not just the noise and amplitude, but also the pulse "code"; wind turbines falls exactly on a harmonic series. It travels through buildings; it's all below 10hz - very, very damaging. (I would post the link, but I understand if I do, you won't see the comment - apparently UA-cam considers those spam.
I'm gonna tune my bass to drop brown note! 💩
bass drop drop top
MusiCanines - The Musical Dogs that really exists lol... there are also notes that cause the opposite effect...
Monitor with Bose headphones at around 7-8 hz at high volume, keep a toilet roll close, chances are you won’t make it to the bathroom in time.
my headphones could play 20hz, and I heard it the whole time. I also felt it, so thank you for stopping it when you did.
Just found your channel.....How brilliant. I can’t even express how perfectly your way of teaching suits my learning style... amazing...and I’m sure this is true for many people- You sure found your niche! You’re so smart and talented. Keep it up!!!! You’re helping so many people!
"I should probably leave to pick up Super Mario Od-"
*12tone uploaded a new video!*
"NEVERMIND!"
Bass drops at 1:41.
Love these vids 12tone, super informative c:
Just wondering if you have experimented with "Shepard tones " at all, I heard about the concept from a Hans Zimmer interview, thought it was super rad
Great video! I've always been fascinated by infrasound and its affects on people.
I can hear 20 Hz, which probably means my headphones are pretty good.
CrudeRow yeah when he stopped playing the note I thought "finally!!"
I was in the play Night of the Living Dead last year and in addition to the music, the sound team had an infrasound grow and shrink the entire time. It sounded like a deep beating heart. We were only on stage for an hour, but that flowing sound was behind everything and I never got used to it. It helped us maintain our intensity level, though.
Wow! Brilliantly presented, with lots of great laughs in the illustrations! I think I'll watch it again.
1:47 the super low frequency sine wave here causes my speakers to soft clip the narration so slightly that it was barely noticeable, which was quite an intersting experience
Awesome video, dude!
That gun you drew is the cutest gun I've ever seen
Lol I heard the 20hz sound am I cool now
Flo Ryan Me too. It sounds like a fart! It's almost the brown note! 💩
I heard really easily too. Maybe you're just deaf?
Yay for good audio equip :3
I heard it only after plugging in my largest speakers and turning them to maximum volume. But I'm watching this on an iPad, which is not a device known for superior audio quality.
lol i heard it and my earphones cost £3
This makes perfect sense. My friend and I were walking through woods near my house and we both became very jumpy but didn’t know why, and a train soon passed on the nearby tracks.
I really hope there aren't any zoos near cinemas which show horror movies. Lots of animals can communicate using infrasound - elephants can apparently communicate over tens of miles, perhaps a hundred or more. Part of a thunder storm's sound is in that range and nearing the end of the dry season, when the storms start, elephants will suddenly start migrating in the direction of the storms. They know that by the time they get there, there'll be water to drink and maybe some grass. But if they could pick up infrasound from multiple showings of the same film during the days and into the late nights, they'd never get any sleep!
Great episode. Thank you :-)
Alligators both hear and make infrasound. It will be gator mating season soon here in SE Texas and a few gators show up near a movie theater I go to sometimes. I wonder if the sound is attractive to female gators.
Magnificent work!, are you planning to do an analysis of the sounds of David Lynch? the work of Alan Splet is phenomenal and it´s the soul of every film he collaborated with him :) regards!
I've experienced the "brown note" on a crappy old bus when it stopped at a red light. The motos' frequency literally shook the whole thing, and I just guess that it was the brown note, because I had *that feeling*..
And I also smelled farts, which is also probably one of the results of the brown note..
In 1974, the Movie, "Earthquake", with Charlton Heston, had a gimmick. They installed truly massive sub-woofers in high end theaters, which had never been done before. They called it, "Sensurround". Not to be confused with the later development of Dolby surround. When the eponymous earthquake scenes occurred in the movie, the soundtrack utilized the sub-woofers and the audience squealed with delight. That is, while watching death and mayhem on screen, because, that's what people are like.
Thank you for the lesson your videos are helping me understand music more and more thank you for posting this video
You freaked me out with the possibilities of infrasound. My computer couldn't play it, thankfully Awesome episode, as usual!
I knew about this! MatPat made a video of it, I am scared for life. I like your take on it, though.
This was interesting, so I did some testing of my own. I know the bottom of my hearing range is around 24 hz. I took a tone generator app that has a "subwoofer test" function where it basically does a smooth downwards portamento between any two pitches,and I set it to go between 30 hz and 1 hz with my device set set at maximum volume through a high quality set of studio earphones.
Between 25 hz and 22 hz was a dead zone for me. From 25 hz to 10 hz I could hear individual beats of the sine wave. 10 hz and below didn't function in my headset.
My hearbeat began to increase at around 15 hz and I noticed my breating quickening around 12 hz. Pretty neat stuff.
There is also a good change that consumer audio compression, which is practically always lossy, just throws away those low frequencies
Cool video! Do you think it would be possible to create inaudible low frequencies by using the missing fundamental principle?
"ok ill stop playing the note now"
that legit blew my mind lol
My sub is a Tapped horn that goes down to 13hz or so and above 110db... So that's fun! :D Didn't expect that random 20hz note in here! Thanks for the explaination!
*2:29** I WAS ALWAYS SCARED OF THIS EARTHQUAKE SIMULATOR AT MY MUSEUM AND IT HAS A REALLY LOW FREQUENCY SOUND THEY WOULD PLAY AND YOU JUST MADE ME REALIZE WHY IT SCARED ME SO MUCH* because the sound!!
More on psychoacoustics would be very appreciated! Great video!
5:12 - South Park recorder concert with the brown noise
A pipe organ with a full-compass (usually pedal) 32' stop can get into the upper infrasound range, and one with a full-compass 64' stop can get more than an octave into the infrasound range. The only pipe organs with true full-compass 64' stops (as opposed to ones synthesized with rotary subwoofers or resultants) are the Sydney Town Hall Grand Organ (which is fully operational) and the Atlantic City Boardwalk Hall Auditorium Organ (which is being restored but has a long way to go).
Thank you for all this important info. 👍 (how difficult would it have been for some teacher to help us understand this?😞 I wish someone had, since it affects us😞)
The drawing at 3:23 is just brilliant :D
if you can't hear infrasound, how do you hear it? I don’t understand, people say it helps them fall asleep, going to use it in a meditation class, it’s neat and more, and others say it drive them goofy or terrified and more, Is infrasound it good or bad ? If it can be good, I would like to hear it too and decide for myself if it’s good or bad for me. My stereo system has 2 speakers a separate amplifier with am/ fm, separate cd player and phonograph, I have a separate subwoofer but never hooked it up, in fact I don’t know how to use it and I just picked up at a garage sale a new Sony amplifier, well its new to me and it sound better than my old one. Will my stereo system work? Thanks Tammy p.
I don’t know, every time the chemical plants near me are flaring, I hear a mixture of extremely low frequencies. I know where it’s coming from, but it still keeps me up at night, and is increasing my anxiety, twitches, and tics. It’s awful. 😔
I was watching this on my TV, and while I couldn't hear (or it couldn't produce) the lowest tone, it has an audio compressor to even out the volume difference between channels (and obnoxiously loud ads), which got triggered and lowered your voice to barely audible levels when the tone was playing.
I heard about the brown note, someone was constipated, another recommended that. And the person in distress reported back that it worked!
In your next video you should extol the virtues of the minor seventh chord and why it's the only chord you should ever use
This is why the sound of a stuka dive bomber in WW2 was so effective. Even before anyone knew what it was capable of.
As this video progressed it gave me a huge sense of paranoia for no apparent reason and gave me the eye twitch you talked about but are you actually playig those rumbles throughout the video and gradually making them louder?
Wow, I didn't think my headphones would be able to produce the 20Hz note, seeing as bass is their biggest weakness. Both cool and unsettling, the sound makes my ears feel weird lol
i was like is this dude gonna have this rumble the whole vid?
I could actually tell there was ta low hz in my headphones and they're meant for bass. Nice to know they can contribute to making mu horror game experiences even better
I heard of a castle in Britain that had tours of its dungeon. Everyone agreed that the place had a bad "vibe", appropriately enough. No one felt comfortable in the dungeon and many blamed it on a haunting. Further research showed that a factory nearby had a very heavy machinery that were vibrating in Infrasound and the ground conducted the vibrations to the underground dungeon.
What do you mean improve? I have a 1979 headphone that can accurately generate 15 hertz (up to 25kh).
Most speakers I see nowdays can barely go below 35.
Can you hear that with speakers and get the same sense of fear and revulsion or does it have to be a high end speaker?
came for the sounds, got some knowledge and cool doodles.
Yeah my subwoofer although not the best could actually produce it.I noticed it by placing my hands on it and i noticed when you actually stopped the sound.Tho all these 20 or lower hz dosen't seem actual coz i can somehow hear it,especially if i raise the volume.
OMG i put my headphones on full volume when you played the 20hz sound and my heaphones were physically shaking
My SOL headphones represent 20 Hz well enough.
The correct term is Level not Volume. I know, I'm an engineer. But I love your channel.
You are good at drawing and it helped me alot
holy shit i forgot i had my playback at 0.25 and that opening was the scariest shit ive ever heard
Hey, in few videos you mentioned your write music yourself, fancy showing it to us on some special occasion?
I'm going to do a study on this how this could be used as an interrogation tattic thanks for the info.
I recently got a HSU sub that kicks out 18hz pretty well. I have been surprised by how much it rattles the entire house; I thought my housemate had snuck up and was shaking the couch while watching King of the Monsters. Miniatures in display cabinets get moved around and knocked over, it vibrated a cup off the coffee table, and it'll rattle cabinets and doors at particular frequencies.
I wonder if old houses with poor wind sealing create infrasound when high winds blow through them, like when the car windows are rolled down a certain way at highway speeds. Obviously, you know the source of the intense low freqs in the car, but in a rickety old house, people don't think about wind unless they're hearing the higher pitched whistling. Things falling off shelves, disturbing "vibes" (pun intended), a drop in temperature, and unknown noises, combined with the visual aspect of an old house could easily create a feeling of supernatural disturbances.
Sound I never heard before
I love you
i was listening really intently, and the HEY! at the start scared the living crap out of me
I was at a concert once, and it was so loud, that I started feeling dizzy at one point. It literally affected my equilibrium. _What_ is the purpose of that??
In a small venue? For the fun, Larger venues? so the people at the back can hear it, In any case at a live show of any real volume, and by that I mean any live show with amplification, you should be wearing ear protection (there are exceptions, most likely a coffee shop performer isn't going to be loud enough to be a problem, but a rock show, metal show, pop show, a lot of rap shows, the volume is loud enough you should be using ear protection and it can help with that vertigo feeling that happens with high sound pressure.
(this coming from a metalhead that frequents live shows, seriously, take earpro with you even if you don't end up needing it)
Asap science for muscians! Brilliant. New subscriber here 😊
Doubling sound pressure level is 3dB not 6 and doubling the volume (perceived loudness) would be approximately 10dB.
If you keep clicking the red bar around when the 20 hz sound is playing, you can hear an audible thump.
That's because at 20Hz, the time between peaks or troughs is long enough that it's pretty easy to randomly start at a point where the soundtrack is near a peak or trough. Your sound card tries to get the signal to that level instantly, and it sounds like a thump.
tbf there should probably be a myth busters episode on whether or not mythbusters actually bust myths
Tigers produce infrasound when they roar, so there has been speculation that the unease of infrasound could be part of the "freeze in terror" reaction when faced by large predatory cats.
Improbabilities or it might just be the "f***, I am gonna be eaten by a large pussycat" that causes the terror??? ;) personally, I'd care more about that than "oh,is that infrasound?" 😛
*The true brown note?*
Oh i commented too soon
Don' you use this app by downloading it using Bluetooth to play on your stereo? Can you play this on a speaker so others can hear it? If you can play it on a speaker what kind of speaker do I need? I was going to buy a infrasound subwoofer but the man said I would ruin the speaker if I played low frequency sound to long. What am I missing or don't understand, thanks tammy
For those who couldnt hear the note. Slow the video down by 0.5 You'll hear his voice layered unto that frequency
wow fsr when you played the sound, and i paused, the speakers cracked, even though i couldnt here it, and this isnt something wrong with my headset cuz it is fine with other vids.. cool...
I enjoyed hearing the note the whole time it was played
Are you the @samuraiguitarist? Great channel btw!
This makes me think of some early recordings I made (and some I've heard friends make) that hurt my ears. They aren't particularly loud sounding, and although they've got distortion I've heard things with much more distortion that doesn't bother me. They aren't even particularly dissonant.
They were made with a really cheap microphone. I tried compression, but that didn't help. Actually, just the other day someone posted something on UA-cam where the harmonica part hurt my ears (usually I like harmonica, that's my instrument). It was low in the mix, but still hurt. I actually posited that there was a frequency in the mix that I couldn't hear that was causing the problem but didn't have any evidence.
So, is this a thing? If it is, how do you A) prevent it from happening in a recording (my current setup doesn't have that problem, but I've been asked by friends with that problem what they were doing wrong and B) Can you fix it in old recordings?
:)
It's probably a thing in theory, but that frequency would need to be incredibly loud in order to cause pain. I'm not really sure what else would be causing it, though, so it might be worth trying to EQ away the high end and see if that helps.
I'll give it a shot.
An ad is playing and I’m terrified about the sound, help
When he said twitch, he drawed the twitch logo! XD LOL 😂!!!
Aqualung by Jethro Tull please?
KobusBDOYeah! Im not the only one who knows aqualung by jethro tull here? Wow
XironDarkar76 It's a pretty popular song my dude
i could totally rave to this sound
I was listening to this clip at 1.5x speed and I heard something distorting the sound while the 20htz tone or whatever is playing around 1:44 to up until 2:00 even though I couldn't hear it at regular speed
Infrasound may also make sidesounds that have higher frequencies.
My headphones reproduced the 20 Hz wave and I heard it, it was a low rumble almost like an animal growl if I had to describe it.
Yai! My subwoofer managed those 20Hz really well! No bowel movement though ;-)
I have some very ugly-looking but fantastic-sounding Koss PortaPro headphones. I got them because of the extremely wide frequency response (15-25,000Hz). My normal Logitech speakers couldn't even produce the 80Hz tone (lame). I watched this video a second time with my headphones instead and the 20Hz tone blew me away!
Anyway, all this to say I was surprised I could hear the 20Hz tone! What do I win? ;)
Can you review and analyze (ra ra) Rasputin, its reaaaaly catchy and it's stuck in my head and I want to know why
I think for next Halloween special, you should dissect the Lavender Town song from Pokemon Red/Blue (or Green in Japan) from the original Gameboy. Plenty of creepypastas, memes, and urban legends (suicides, headaches, etc) surrounding that creepy song in a kid's game.
Some researchers are saying that the tyrannosaurus , was producing a low rumbling sound, instead of the roar in Jurassic Park , with infra sound components, and were using the infra sounds as mean of communication like the Elephants.
But with our little speakers of our PC it does not give justice to the real effect i guess.
jean-louis pech I am not religious but in the bible a trumpet was blown and the walls came crashing down 🥺. Makes you think !
@@pinkyman5155
In the movie "man of steal" superman raises his arm and fly.....
Makes you think!
Tim Storms pranking people on April fools day.
Nice video
i've been researching this subject and found out i can hear really low frequencies. and as i kept digging deeper i've almost fucked up my brain using myself as test subject...
i wanted to build a weapon but i can't find a way to block the sound and even if i did, it wouldn't work, i'd still feel pain.
I remember hearing about the most quite room in the world. used to test things. It was said that being inside of it for just a few minutes causes people to get sick. Are you familiar with this?
AMAZING!! HOLY COW THATS METAL!
I haven't watched the whole video yet but I'm guessing That he is playing infrasound in the background the whole time